Double-pulse test platform capable of preventing connection wire from falling off
By designing an anti-dislodgement component on the dual-pulse test platform, the problem of the current clamp plug easily falling off was solved, achieving a stable connection and convenient disassembly of the current clamp, ensuring the smooth progress of the test.
Patent Information
- Application Number
- CN202422785117.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-15
AI Technical Summary
During the double-pulse test, the connection between the current clamp and the external inductor of the double pulse is unstable. The plug is easily pulled off by external force, which affects the normal progress of the test.
An anti-dislodgement component is designed, including a socket housing, a concave plate, an arc-shaped clamp, a reset component, a limiting component, and a snap-fit component. The plug portion of the current clamp is fixed by the sliding and limiting structure to prevent it from falling off.
It effectively prevents the current clamp plug from falling off due to external force during testing, ensuring the normal conduct of the test, and simplifies the disassembly process of the current clamp, improving the convenience of operation.
Smart Images
Figure CN223770323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dual-pulse test platform, and in particular to a dual-pulse test platform that prevents wiring from falling off. Background Technology
[0002] The main functions of the dual-pulse test platform include: testing and comparing the parameters of different power devices; evaluating the function and performance of drive circuits; obtaining key parameters of devices during turn-on and turn-off processes, such as turn-on time, turn-off time, and voltage spikes, to evaluate the dynamic characteristics of the devices; evaluating the reverse recovery behavior and safety margin of diodes; and measuring the stray inductance of busbars and the system.
[0003] The dual-pulse test platform is an indispensable piece of equipment in the research and development and production of power semiconductor devices. By selecting a suitable test platform and making reasonable use of its various functions, it is possible to ensure that the characteristics and quality of the devices meet the design requirements and improve the reliability and performance of the products.
[0004] During the double-pulse test, the plugs of two current clamps need to be inserted into the external double-pulse inductor. However, most current clamps simply insert their plugs into the corresponding slots on the external double-pulse inductor. After connecting the current clamps to the external double-pulse inductor, the tester needs to connect the current clamps to the device to be tested. In this connection process, the simple plug-in method between the current clamps and the external double-pulse inductor is unstable, and the plugs of the current clamps can easily be pulled off by external force, thus affecting the normal progress of the double-pulse test. Utility Model Content
[0005] The main purpose of this invention is to provide a double-pulse test platform that prevents wiring from falling off. This effectively solves the problem that after the current clamp is connected to the external inductor of the double pulse test, the plug of the current clamp is easily pulled off by external force, thus affecting the normal operation of the double pulse test.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A dual-pulse test platform for preventing wire detachment includes an experimental platform and several current clamps. The platform is characterized by: a control cabinet fixedly connected to the upper right side; an external inductor fixedly connected to the upper left side; several support plates fixedly connected in a linear array at the upper center of the external inductor; the current clamps and support plates being movably installed in a one-to-one correspondence; several anti-detachment components arranged in a linear array at the upper center of the external inductor; a reset component symmetrically arranged on the left and right sides of the upper side of each support plate; and limit components and locking components symmetrically arranged on the left and right sides of each reset component.
[0008] Preferably, the anti-disconnection component includes a socket housing, which is fixedly connected to the upper middle part of the external inductor body. A concave plate is slidably connected to the upper front part of the inner surface of the socket housing, and an arc-shaped clamping plate is fixedly connected to the upper side of the inner surface of the concave plate.
[0009] Preferably, a plurality of silicone bumps are fixedly connected to the inner surface of the arc-shaped clamp, and the plurality of silicone bumps are distributed in an arc-shaped array.
[0010] Preferably, the reset assembly includes a fixing plate, which is fixedly connected to the middle left side of the inner surface of the socket housing. A spring is fixedly connected to the middle upper part of the fixing plate, and the upper side of the spring is fixedly connected to the lower end of the concave plate. Limiting blocks are symmetrically fixedly connected to the front and rear sides of the upper end of the fixing plate.
[0011] Preferably, a telescopic rod is fixedly connected to the middle of the upper end of the fixed plate, the spring is sleeved on the outer surface of the telescopic rod, and the telescopic rod is fixedly connected to the lower end of the concave plate.
[0012] Preferably, the limiting component includes a limiting ring, a through circular hole is provided in the middle of the left end of the socket housing, the limiting ring is fixedly connected to the left side of the inner surface of the circular hole, a slide rod is slidably connected to the inner surface of the limiting ring, a plug rod is fixedly connected to the right end of the slide rod, a second spring is sleeved on the outer surface of the slide rod, the left and right sides of the second spring are fixedly connected to the right end of the limiting ring and the left end of the plug rod, respectively, an arc-shaped plate is rotatably connected to the left end of the slide rod, and a slot is provided in the middle of the left end of the concave plate.
[0013] Preferably, the snap-fit assembly includes an L-shaped plate, which is fixedly connected to the upper middle part of the left side of the socket housing, and the vertical part of the L-shaped plate has a through arc-shaped groove in the middle of the left side.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The anti-disengagement component of this utility model can slide downwards after the current clamp is inserted into the slot provided in the anti-disengagement component, pressing down on the plug part of the current clamp. The two limiting components can restrict the anti-disengagement component in this state, so that the anti-disengagement component can keep the plug part of the current clamp fixed after sliding down, thereby preventing the plug part of the current clamp from easily falling off due to external force or other reasons during the double pulse test, thus affecting the normal progress of the double pulse test.
[0016] 2. The two snap-fit components provided in this utility model can fix the position of the two plug rods in the two round holes when the concave plate returns to its initial position and the plug part of the current clamp is no longer fixed. This prevents the two plug rods from returning to their original positions and hindering the process of removing the current clamp from the external current body. At the same time, this operation can be completed by only one person, which provides convenience for the process of removing the current clamp from the external current body. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural schematic diagram of the present invention;
[0019] Figure 3 This is a partial structural schematic diagram of the present invention;
[0020] Figure 4 This is a schematic diagram of the reset component structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the limiting component and the snap-fit component of this utility model;
[0022] Figure 6 This is a partial structural diagram of the limiting component of this utility model.
[0023] In the diagram: 1. Experimental table; 2. Control cabinet; 3. Current clamp; 4. External inductor body; 5. Anti-dislodgement component; 51. Concave plate; 52. Arc-shaped clamp; 53. Socket shell; 54. Silicone protrusion; 6. Support plate; 7. Reset component; 71. Telescopic rod; 72. Spring 1; 73. Fixing plate; 74. Limiting block; 8. Limiting component; 81. Round hole; 82. Insert rod; 83. Spring 2; 84. Limiting ring; 85. Slide rod; 86. Arc-shaped plate; 87. Slot; 9. Snap-fit component; 91. L-shaped plate; 92. Arc-shaped groove. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figure 1 , Figure 2 and Figure 3As shown, a dual-pulse test platform for preventing wire detachment includes an experimental platform 1 and several current clamps 3. The platform is characterized by: a control cabinet 2 fixedly connected to the upper right side of the experimental platform 1; an external inductor body 4 fixedly connected to the upper left side of the experimental platform 1; several support plates 6 fixedly connected in a linear array at the upper middle part of the external inductor body 4; several current clamps 3 and several support plates 6 movably installed in a one-to-one correspondence; several anti-detachment components 5 arranged in a linear array at the upper middle part of the external inductor body 4; a reset component 7 symmetrically arranged on the left and right sides of the upper side of each support plate 6; and limit components 8 and snap-fit components 9 symmetrically arranged on the left and right sides of each reset component 7.
[0026] The aforementioned experimental platform 1, control cabinet 2, and external inductor body 4 are all mature technologies in the existing technology. This solution only introduces the process of inserting several current clamps 3 into several anti-disconnection components 5 to establish a connection with the external inductor body 4, and then fixing the plug part of several current clamps 3. As for the specific structure, working principle, and specific operation steps and operating principles of the experimental platform 1, control cabinet 2, and external inductor body 4, they will not be elaborated here.
[0027] In specific implementation, the number of current clamps 3 and the number of anti-disengagement components 5 are the same and correspond one-to-one. The current clamps 3 are inserted into the anti-disengagement components 5, and the support plate 6 can support the plug part of the current clamps 3 at this time, so that the anti-disengagement components 5 can better fix the plug part of the current clamps 3. The plug part of the current clamps 3 inserted into the anti-disengagement components 5 is fixed by the anti-disengagement components 5. The state of the anti-disengagement components 5 after fixing the plug part of the current clamps 3 is restricted by the two limiting components 8, so as to prevent the anti-disengagement components 5 from returning to the initial position under the action of the two reset components 7.
[0028] After the double pulse test is completed, the two limit components 8 are not limited to the position of the anti-detachment component 5. Then, the two snap-fit components 9 are used to limit the position of the two limit components 8 after the anti-detachment component 5 is not limited. Under the action of the two reset components 7, the anti-detachment component 5 is restored to its initial position and will not hinder the process of pulling the current clamp 3 out of the anti-detachment component 5. Then, the current clamp 3 is pulled out of the anti-detachment component 5.
[0029] Specifically, to prevent the plug of the current clamp 3 from easily detaching due to external force after being inserted into the external inductor body 4 during the double pulse test, thus affecting the normal progress of the double pulse test, please refer to... Figure 4The anti-disconnection component 5 includes a socket housing 53, which is fixedly connected to the upper middle part of the external inductor body 4. A concave plate 51 is slidably connected to the upper front part of the inner surface of the socket housing 53, and an arc-shaped clamping plate 52 is fixedly connected to the upper side of the inner surface of the concave plate 51. A plurality of silicone protrusions 54 are fixedly connected to the inner surface of the arc-shaped clamping plate 52, and the plurality of silicone protrusions 54 are distributed in an arc-shaped array.
[0030] Further reading Figure 4 The reset assembly 7 includes a fixing plate 73, which is fixedly connected to the middle left side of the inner surface of the socket housing 53. A spring 72 is fixedly connected to the middle upper end of the fixing plate 73. The upper side of the spring 72 is fixedly connected to the lower end of the concave plate 51. Limiting blocks 74 are symmetrically fixedly connected to the front and rear sides of the upper end of the fixing plate 73. A telescopic rod 71 is fixedly connected to the middle upper end of the fixing plate 73. The spring 72 is sleeved on the outer surface of the telescopic rod 71. The telescopic rod 71 is fixedly connected to the lower end of the concave plate 51.
[0031] Further reading Figure 5 and Figure 6 The limiting component 8 includes a limiting ring 84. A through circular hole 81 is provided in the middle of the left end of the socket housing 53. The limiting ring 84 is fixedly connected to the left side of the inner surface of the circular hole 81. A sliding rod 85 is slidably connected to the inner surface of the limiting ring 84. A plug rod 82 is fixedly connected to the right end of the sliding rod 85. A second spring 83 is sleeved on the outer surface of the sliding rod 85. The left and right sides of the second spring 83 are fixedly connected to the right end of the limiting ring 84 and the left end of the plug rod 82, respectively. An arc plate 86 is rotatably connected to the left end of the sliding rod 85. A slot 87 is provided in the middle of the left end of the concave plate 51.
[0032] Further reading Figure 5 The snap-fit assembly 9 includes an L-shaped plate 91, which is fixedly connected to the upper middle part of the left side of the socket housing 53. The vertical part of the L-shaped plate 91 has a through arc-shaped groove 92 in the middle of the left side.
[0033] The aforementioned socket housing 53 has a socket for inserting current clamps 3 in the middle of the front side of the inner surface. After the current clamps 3 are inserted into the socket one by one, they can establish a connection with the external inductor body 4 for subsequent double pulse testing. This socket is a mature technology in the prior art, and its structure and working principle will not be elaborated further in this solution.
[0034] In the specific implementation, in the initial position, under the action of the two springs 72, several silicone protrusions 54 are all above the plug part of the current clamp 3 after being inserted into the socket housing 53, and do not contact the outer surface of the plug part of the current clamp 3.
[0035] Initially, the arc plate 86 is in a horizontal state. Pull the arc plate 86 so that it passes completely through the arc groove 92. Rotate the arc plate 86 to a vertical state so that the arc groove 92 locks the arc plate 86 in place. At this time, the plug rod 82 is completely retracted into the round hole 81 and will not hinder the subsequent process of inserting the current clamp 3 into the socket housing 53. In this way, the plug rod 82 on the other side is also completely retracted into the round hole 81.
[0036] After inserting the current clamp 3 into the socket housing 53, press down on the concave plate 51 until the lower end of the concave plate 51 abuts against the upper ends of the four limit blocks 74. At this time, several silicone protrusions 54 abut against the outer surface of the plug part of the current clamp 3, and the arc-shaped clamp 52 presses down on the plug part of the current clamp 3. At this time, the slot 87 and the round hole 81 on the same side correspond to each other. Press down on the concave plate 51. Then rotate the arc plate 86 on one side from the vertical state to the horizontal state. Under the reaction of the spring 83, the arc plate 86 passes through the arc groove 92 and drives the plug rod 82 on the same side to insert into the slot 87.
[0037] According to the above operation, the other side of the plug 82 is also inserted into the slot 87. In this way, the two limiting components 8 limit the position of the concave plate 51 that is pressing the plug part of the current clamp 3, so that the concave plate 51 can firmly fix the plug part of the current clamp 3, thereby preventing the plug part of the current clamp 3 from falling off due to external force during the double pulse test, which would affect the normal conduct of the double pulse test.
[0038] At this time, both springs 72 are in a compressed state. Several silicone bumps 54 can increase the friction, making the state of the plug part of the current clamp 3 fixed by the concave plate 51 more stable. At the same time, it can also play a buffering role to prevent the plug part of the current clamp 3 from being damaged by the fixing of the concave plate 51.
[0039] According to the above operation, the two plug rods 82 on both sides are disengaged from the slots 87 on both sides. Then, the two plug rods 82 in this state are limited by the two snap-fit components 9. Under the action of the two springs 72, the concave plate 51 returns to its initial position and no longer fixes the plug part of the current clamp 3. Then, the current clamp 3 is pulled out from the socket housing 53.
[0040] The two telescopic rods 71 can provide support for the spring 72 on the same side, so that when the concave plate 51 moves up and down under force, it remains horizontal and will not sway around due to the presence of the two springs 72, thus not hindering the process of inserting the two insertion rods 82 into the two slots 87 respectively.
[0041] It should be noted that the specific installation methods, circuit connection methods, and control methods of the experimental platform 1, control cabinet 2, and external inductor body 4 used in this utility model are all conventional designs, and will not be described in detail in this utility model.
[0042] The working principle of this utility model is as follows:
[0043] After inserting the current clamp 3 into the socket housing 53, press down on the concave plate 51 until the lower end of the concave plate 51 abuts against the upper ends of the four limit blocks 74. Keep pressing the concave plate 51, and then rotate the arc plate 86 on one side from the vertical state to the horizontal state. Under the reaction of the second spring 83, the arc plate 86 passes through the arc groove 92, driving the plug rod 82 on the same side to insert into the slot 87.
[0044] This causes the two plug rods 82 on both sides to disengage from the slots 87 on both sides. Then, the two plug rods 82 in this state are limited by the two snap-fit components 9. Under the action of the two springs 72, the concave plate 51 returns to its initial position and no longer fixes the plug part of the current clamp 3. Then, the current clamp 3 is pulled out from the socket housing 53.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A double pulse test platform for preventing wire disconnection, comprising an experimental table (1) and a plurality of current clamps (3), characterized in that: The experimental table (1) upper end right part is fixedly connected with control cabinet (2), the experimental table (1) upper end left part is fixedly connected with external inductance body (4), the external inductance body (4) upper end middle part is fixedly connected with a plurality of supporting plates (6) that are linear array distribution, a plurality of current clamps (3) and a plurality of supporting plates (6) one-to-one corresponding activity installation, the external inductance body (4) upper end middle part is provided with a plurality of anti-drop components (5) that are linear array distribution, every supporting plate (6) upside left and right parts are symmetrically provided with reset component (7), every reset component (7) left and right sides are symmetrically provided with limiting component (8) and clamping component (9).
2. The dual pulse test platform of claim 1, wherein: The anti-drop component (5) includes a socket housing (53), the socket housing (53) is fixedly connected with the upper end middle part of the external inductance body (4), the inner surface of the socket housing (53) is slidably connected with a concave plate (51), the inner surface of the concave plate (51) is fixedly connected with an arc-shaped clamping plate (52).
3. The double pulse test platform of claim 2, wherein: The arc-shaped clamping plate (52) is fixedly connected with a plurality of silica gel protrusions (54), and the plurality of silica gel protrusions (54) are arranged in an arc shape.
4. The dual pulse test platform of claim 3, wherein: The reset component (7) includes a fixed plate (73), the fixed plate (73) is fixedly connected with the left middle part of the inner surface of the socket housing (53), the fixed plate (73) is fixedly connected with a spring (72) at the upper middle part, the spring (72) is fixedly connected with the lower end of the concave plate (51) at the upper side, and the fixed plate (73) is fixedly connected with a limiting block (74) at the upper front and rear sides.
5. The dual pulse test platform of claim 4, wherein: The fixed plate (73) is fixedly connected with a telescopic rod (71) at the upper middle part, the spring (72) is sleeved on the outer surface of the telescopic rod (71), and the telescopic rod (71) is fixedly connected with the lower end of the concave plate (51).
6. The dual pulse test platform of claim 2, wherein: The limiting component (8) includes a limiting ring (84), a circular hole (81) is formed in the left middle part of the socket housing (53), the limiting ring (84) is fixedly connected with the left side of the inner surface of the circular hole (81), a sliding rod (85) is slidably connected with the inner surface of the limiting ring (84), the right end of the sliding rod (85) is fixedly connected with a plug rod (82), a spring (83) is sleeved on the outer surface of the sliding rod (85), the left and right sides of the spring (83) are fixedly connected with the right end of the limiting ring (84) and the left end of the plug rod (82) respectively, and an arc-shaped plate (86) is rotatably connected with the left middle part of the concave plate (51).
7. The dual pulse test platform of claim 6, wherein: The clamping component (9) includes an L-shaped plate (91), the L-shaped plate (91) is fixedly connected with the left upper middle part of the socket housing (53), and an arc-shaped slot (92) is formed in the left middle part of the vertical part of the L-shaped plate (91).